AprilAire 210
Usual safest starting recommendation.
MERV 11AprilAire cabinet mediaSize 20x25
This is your filter setup
AprilAire 1210 cabinet
Use AprilAire cabinet media only for this cabinet setup.
Size20x25 Depth/typecabinet media UseAprilAire
Recommended starting point
AprilAire 210
MERV 11 is usually the safest starting point.
Higher MERV can improve filtration, but is not automatically better if your system cannot handle the added airflow resistance.
These filters fit
Compatible options
When to replace
AprilAire MERV 11/13 filters should be checked around 6 months; many systems can go up to 12 months depending on use. AprilAire MERV 16 is generally about 6 months.
Higher MERV note
Higher MERV can improve filtration, but is not automatically better if your system cannot handle the added airflow resistance.
Before buying
Confirm the cabinet model, media model, pack count, price, and availability.